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-   -   Turbo or Supercharger?? (https://www.rx7club.com/1st-generation-specific-1979-1985-18/turbo-supercharger-104379/)

Project84 05-24-02 04:27 AM

Turbo or Supercharger??
 
I don't know if I want to spend 2 grand for an Atkins rotary 13B turbo for my 1st gen, or if I want to save some more dough and get a street ported 12A w/3mm seals and a camden supercharger. This is what brought about the question in my poll.

MikeLMR 05-24-02 05:45 AM

watch Mad Max then buy a super charger ... sorted :D

Sterling 05-24-02 07:35 AM

I love superchargers. Unfortunately, the Camden is not the greatest SC. I think there are other options for the 13B.

yayarx7 05-24-02 09:16 AM

I would go with the turbo, as it is easier and has been done so much there is a ton of support out there, on that note, the SC would be different, if you are into that.

BadAssRX-7 05-24-02 09:31 AM

hte turbo is cheaper and will make more safe power... ane like yaya said theres more suport out ther for a turbo. and FYI a 12a has 3mm seals STOCK

RXcetera 05-24-02 09:41 AM

How about getting a ported 13B, a big carb and forgetting all about turbos and SCs... just a thought...

1st7heaven 05-24-02 09:49 AM

I had alot of fast, fun, and most important RELIABLE,
years on a 4port, 13b, Holley, and header motor. It wasnt as much hp as a turbo or supercharged motor but the motor lasted almost 7 hard years! You can out run any normally aspirated imports and most stock V-8s. Most important, under $2000.00 for new parts!:cool:

RXcetera 05-24-02 10:08 AM

Could you imagine a streetport or even a bridgeport on your 4 port 13B setup? You'd be looking at more than 250 reliable hp :D.

1st7heaven 05-24-02 10:17 AM

Amen! I had a bridge ported 4 port in a race car(autocrosser). I cant imagine it on the street!!:eek:

I am building a new motor right now for autocrossing, lightened and balanced 89' rotors and shaft, hardened and locked gears, 93 oil pump, bridge ported, 48 webber, electric water pump, header into 3", Dynomax. Combined with my 1900lbs.............YEEEEEHHHAAAAA!:crzyeye:
http://members.cardomain.com/7heaven

mar3 05-24-02 01:03 PM

If money were no object, I'd run a turbo for each rotor, intercooled, water-injected and nitrous'd for good measure... :cool:

RXcetera 05-24-02 04:10 PM

Omg, how many times is this thread going to go back to the top without anyone posting anything?? I hafta put a stop to this...

1st7heaven 05-24-02 04:13 PM

we need to add "normally aspirated" to that pole hehehe

mar3 05-24-02 04:14 PM

Ha Ha!! Here it is again, at the top!! People are voting on the poll but not posting like the rude animals they have become...silently sneaking in the background...:p:

Defprun 05-24-02 04:55 PM

I'm going to turbocharge my car until i run out of money, i will upgrade this turbo every couple of years, and lighten and harden the internals until i cannot anymore, and when i cannot..ill stuff a 20b in there, at wich point i will turbocharge the crap out of. The 12a that was in there, i will transplant into another car, not sure yet what kind...cavalier? LOL

Kill No Cone 05-25-02 03:00 AM

I have seen the Atkins turbo of a 76 cosmo at the Import drags and I was not impressed. I also understand that the belt stress the front seal or bearing and you need to modify the front housing to make it last. I would just build a nicely ported engine.

mar3 05-25-02 02:28 PM

The stress at the crank will also be present for any SC applications, which is another thing to worry about....

REVHED 05-25-02 04:53 PM

The power available from forced induction is great but for me you can't go past the simplicity of a ported n/a engine with a good carb.(weber,dellorto)

Plus, nothing beats the sound of an IDA Weber at full throttle on a ported engine. ;)

Directfreak 05-25-02 06:58 PM


Originally posted by REVHED
The power available from forced induction is great but for me you can't go past the simplicity of a ported n/a engine with a good carb.(weber,dellorto)

Agreed.


Originally posted by REVHED
Plus, nothing beats the sound of an IDA Weber at full throttle on a ported engine. ;)
Except the PHOOOOSH!!!! of a 13B Turbo's Blow Off Valve as it fly's by under boost..:zip:

:D

stinkfist 05-25-02 08:19 PM

Q: Whats the difference between a 250hp N/a and a 250 hp turbo motor.

A: about 60 ft/lbs of torque :)

Defprun 05-25-02 08:33 PM

Superchargers just suck. Suck power from your engine!!

Project84 05-26-02 01:01 AM


Originally posted by defprun
Superchargers just suck. Suck power from your engine!!
They put in more power than it takes to run it, or it wouldn't be any more than dead weight. As far as the stress on the front seal, bearing, and mods to the housing, I wasn't aware of that. Thanks for the input. I think I will more seriously consider turbo rather than a supercharger.

madaz07 05-26-02 03:07 AM

hey revhed are they your real mags, looks good



A supercharged engine will be bitch to keep quite if you want max hp. the turbo 13b IMO is a far better optoin they can be kept pretty quite without losing too much hp and will probably be cheaper in the long run when you have to rebuild them

REVHED 05-26-02 06:58 AM


Originally posted by madaz07
hey revhed are they your real mags, looks good
Nah, photoshop. Did you go to Willowbank today for Drag Combat?

Sterling 05-26-02 07:08 AM


Originally posted by defprun
Superchargers just suck. Suck power from your engine!!
Eh-Eh-Eh...Don't get me fuckin started, fellas!

Know yer shit before ya talk it.;)

ASEmaster 05-26-02 07:27 AM

I would vote supercharger.. I had no idea there was one available for an FB. You get none of the lag from a turbo, you don't have to mess with the exhaust system to the extent you would with a turbo either. You probably wouldn't need to baby it like you would a turbo for it's longevity either (proper warmup/cooldown procedures). As far as stress on the crank goes, it wouldn't think it would be that adverse if done correctly.. if it took the place of your airpump, it would probably be NO different to the shaft.

Mad Max did have a sweet SC, but I've never seen one you could turn on and off like that :D How would the air get into the motor when it was turned off?

I don't have the $$$$ for any type of charged air system, so it's all academic at this point anyhow (maybe I could modify my smog pump to add some boost :D ), but there's my 2 cents!


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